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Cabletron Systems SmartSwitch manual Displaying Load Balancing Information, Configuration Examples

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Chapter 15: Web Hosting Configuration Guide

Displaying Load Balancing Information

To display load balancing information, enter the following commands in Enable mode.

Show the groups of load	load-balance show virtual-hosts group-
balancing servers.	name <group name> virtual-ip<ipaddr>
	virtual-port <port number>

Show source-destination	load-balance show source-mappings client-
bindings.	ip <ipaddr/range> virtual-ip<ipaddr>
	virtual-port <port number> destination-
	host-ip <ipaddr>

Show load balancing statistics.	load-balance show statistics group-name
	<group name> virtual-ip<ipaddr>
	virtual-port <port number>

Show load balance hash table	load-balance show hash-stats
statistics.

Configuration Examples

This section shows examples of load balancing configurations.

Web Hosting with One Virtual Group and Multiple Destination Servers

In the following example, a company web site is established with a URL of www.ctron.com. The system administrator configures the networks so that the SSR forwards web requests among four separate servers, as shown below.

Web requests forwarded to

one of the servers

10.1.1.1 Router

10.1.1.2

10.1.1.3

10.1.1.4

www.ctron.com

Internet

Web requests

to www.ctron.com Virtual IP Address: 207.135.89.16

SmartSwitch Router User Reference Manual

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Image 237

Cabletron Systems SmartSwitch manual Displaying Load Balancing Information, Configuration Examples

Contents

9032578-04 SmartSwitch Router User Reference ManualSmartSwitch Router User Reference Manual Vcci Notice Industry Canada NoticeCabletron SYSTEMS, INC Program License Agreement SmartSwitch Router User Reference Manual SmartSwitch Router User Reference Manual SmartSwitch Router User Reference Manual Cabletron Systems Limited Program License Agreement SmartSwitch Router User Reference Manual Laser Radiation and Connectors Safety InformationEC Directive 73/23/EEC EC Directive 89/336/EECSmartSwitch Router User Reference Manual Contents Hot Swapping Line Cards and Control Modules Creating a non-IP/non-IPX Vlan SmartTRUNK Configuration GuideVrrp Configuration Guide 127 IP Multicast Overview 199 Multicast Routing Configuration Guide 199209 Web Hosting Configuration Guide 233 255 QoS Configuration Guide 283 WAN Configuration Guide 315 Contents Preface How to Use This ManualAbout This Manual Who Should Read This Manual?Preface Managing the SSR using Cabletron’s Installing and setting up the SSRRelated Documentation For Information About SeePreface SmartSwitch Router User Reference Manual SSR Hardware and software specifications Feature SpecificationChapter SSR Product Overview Multicast IGMP, Dvmrp IPX RIP, SAPSupported Routing Protocols Supported Media Encapsulation TypeConfiguring the SmartSwitch Router Understanding the Command Line InterfaceRouting Information Protocol RIP Version 1 Access Modes Basic Line Editing CommandsCommon CLI key commands Key Sequence CommandUser Mode Enable Mode Exit Configure Mode Pvst Boot Prom ModeDisabling a Function or Feature Loading System Images and Configuration FilesBoot and System Image Configuration FilesSsr# system show version Loading System Image SoftwareLoading Boot Prom Software Activating the Configuration Commands in the ScratchpadEnter the system image list command to verify the change Copying the Configuration to the Startup Configuration File CLI displays the following messageEnter yes or y to activate the changes Managing the SSR Displaying Configuration ChangesSetting the SSR Name Setting SSR Date and TimeConfiguring NTP Configuring the SSR CLI Configuring Snmp ServicesConfiguring DNS Configuring Logging Connecting Between the SSR and Other SystemsTask Command Monitoring ConfigurationShow the type of Power-On Self Test Post Show the SSR login bannerShow the configuration changes Reboot Show the status of the switching fabricChapter Hot Swapping Line Cards Control Modules Hot Swapping OverviewHot Swapping Line Cards Removing the Line Card Deactivating the Line CardInstalling a New Line Card Hot Swapping a Secondary Control ModuleHot Swapping One Type of Line Card With Another Removing the Control Module Deactivating the Control ModuleInstalling the Control Module Hot Swapping a Switching Fabric Module SSR 8600 onlySSR-SF-16 Offline Switching Fabric Chapter Bridging Configuration Guide Bridging OverviewSpanning Tree Ieee 802.1d Bridging Modes Flow-Based and Address-Based Vlan OverviewMAC-address-based VLANs Port-based VLANsProtocol-based VLANs Subnet-based VLANsMulticast-based VLANs SSR Vlan SupportPolicy-based VLANs VLANs and the SSRPorts, VLANs, and L3 Interfaces Access Ports and Trunk Ports 802.1Q supportConfiguring SSR Bridging Functions Configuring Address-based or Flow-based BridgingExplicit and Implicit VLANs Address-Based Bridge Table Flow-Based Bridge Table Configuring Spanning TreeAdjusting Spanning-Tree Parameters Setting the Bridge PriorityMore ports for a particular Vlan Setting a Port Priority Adjusting Bridge Protocol Data Unit Bpdu IntervalsAssigning Port Costs Adjusting the Interval between Hello Times Defining the Forward Delay IntervalDefining the Maximum Age Configuring Vlan Trunk Ports Configuring a Port or Protocol based VlanConfiguring VLANs for Bridging Creating a Port or Protocol Based VlanMonitoring Bridging Configuring Layer-2 FiltersCreating an IP or IPX Vlan Configuration ExamplesCreating a non-IP/non-IPX Vlan Show information on MACsPage Overview Chapter SmartTRUNK Configuration GuideConfiguring SmartTRUNKs Creating a SmartTRUNKAdd Physical Ports to the SmartTRUNK Specify Traffic Distribution Policy Optional Monitoring SmartTRUNKsSt.2 St.4 Router Switch Server Example ConfigurationsSmartTRUNK Configuration Guide Page Configuration Guide ChapterDhcp Overview Configuring an IP Address Pool Configuring DhcpConfiguring Client Parameters Client ParametersGrouping Scopes with a Common Interface Configuring a Static IP AddressConfiguring Dhcp Server Parameters Updating the Lease DatabaseMonitoring the Dhcp Server Define Dhcp network parameters for the scope ‘scope1’ Dhcp Configuration ExamplesDefine an IP address pool for addresses 10.1.1.10 through Define a static IP address forConfiguring Secondary Subnets Include ‘scope2’ in the superscope ‘super1’ Secondary Subnets and Directly-Connected ClientsInteracting with Relay Agents Define the address pool for ‘scope1’ Page IP Routing Overview Chapter IP Routing Configuration GuideSSR supports standards-based TCP, UDP, and IP IP Routing ProtocolsUnicast Routing Protocols Multicast Routing ProtocolsConfiguring IP Addresses to Ports Configuring IP Interfaces and ParametersConfiguring IP Interfaces for a Vlan Specifying Ethernet Encapsulation MethodConfiguring Address Resolution Protocol ARP Configuring ARP Cache EntriesConfiguring Proxy ARP Configuring Reverse Address Resolution Protocol Rarp Specifying IP Interfaces for RarpDefining MAC-to-IP Address Mappings Configuring IP Services Icmp Configuring DNS ParametersMonitoring Rarp Specify pingConfiguring IP Helper Configuring Direct BroadcastConfiguring Denial of Service DOS Monitoring IP Parameters Configuring Router DiscoveryAssigning IP/IPX Interfaces IP Routing Configuration Guide Vrrp Overview Configuring VrrpBackup Basic Vrrp ConfigurationConfiguration of Router R1 Following is the configuration file for Router R1 in FigureSymmetrical Configuration Configuration for Router R2Following is the configuration file for Router R2 in Figure Symmetrical Vrrp Configuration Master for VRID=1 Master for VRID=2 Backup for VRID=2Configuration of Router R2 Multi-Backup ConfigurationMulti-Backup Vrrp Configuration SmartSwitch Router User Reference Manual 101 Virtual Router Default Priority Configured Priority Additional Configuration Configuration of Router R3Following is the configuration file for Router R3 in Figure Setting the Backup Priority Setting the Advertisement IntervalSetting Pre-empt Mode Setting an Authentication Key Monitoring VrrpIp-redundancy trace Ip-redundancy show Vrrp Configuration NotesVirtual routers Display information about all Specific virtual routerSmartSwitch Router User Reference Manual 107 108 Chapter RIP Configuration Guide Configuring RIPRIP Overview Configuring RIP Interfaces Configuring RIP ParametersEnabling and Disabling RIP Characters Set the authentication method Set the authentication methodTo RIP Specify that RIP V2 packetsConfiguring RIP Route Preference Configuring RIP Route Default-MetricMonitoring RIP Configuration Example 114 Ospf Overview OspfEnable Ospf Configuring OspfDisable Ospf Ospf MultipathConfiguring Ospf Interface Parameters Ospf Parameter Default ValueOspf Interface Parameters Configuring an Ospf Area Create an Ospf areaAdd an interface to an Ospf area Creating Virtual Links Configuring Ospf Area ParametersAdd a stub host to an Ospf area Add a network to an Ospf area forCreate a virtual Configuring Ospf over Non-Broadcast Multiple AccessLink Set virtual linkMonitoring Ospf Ospf Configuration Examples Exporting All RIP, Interface & Static Routes to Ospf Exporting All Interface & Static Routes to OspfCreate a Ospf export destination for type-2 routes Create a Ospf export destination for type-1 routesCreate a RIP export source Create a Static export sourceCreate a RIP export destination Create Ospf export sourceCreate OSPF-ASE export source R10 BGP Overview Chapter BGP Configuration GuideSSR BGP Implementation Basic BGP TasksSetting the Router ID Setting the Autonomous System NumberConfiguring a BGP Peer Group Ip-router global set autonomous-system num1 loops num2Autonomous-system number WhereUsing AS-Path Regular Expressions Adding and Removing a BGP PeerStarting BGP 132 Using the AS Path Prepend Feature AS-Path Regular Expression ExamplesTo import MCI routes with a preference Following is an example BGP Configuration ExamplesBGP Peering Session Example CLI configuration for router SSR1 is as follows AS-1 AS-2Physical Link Peering Relationship CLI configuration for router SSR2 is as follows Ibgp Configuration ExampleGated.conf file for router SSR1 is as follows Gated.conf file for router SSR2 is as followsIbgp Routing Group Example AS-64801 Sample Ibgp Configuration Routing Group TypeFollowing lines in the Cisco router configure Ospf Ibgp Internal Group Example Sample Ibgp Configuration Internal Group Type Illustrates a sample Ibgp Internal group configurationSmartSwitch Router User Reference Manual 143 Ebgp Multihop Configuration Example Configuration for router C1 a Cisco router is as followsConfiguration for router C2 a Cisco router is as follows Physical Link AS-64800CLI configuration for router SSR3 is as follows Community Attribute Example CLI configuration for router SSR4 is as followsGated.conf file for router SSR3 is as follows Gated.conf file for router SSR4 is as followsSample BGP Configuration Specific Community Sample BGP Configuration Well-Known Community , router SSR11 has the following configuration , router SSR13 has the following configuration , router SSR14 has the following configuration , router SSR10 has the following configurationSmartSwitch Router User Reference Manual 153 LocalPref Attribute Example Sample BGP Configuration LocalPref Attribute Multi-Exit Discriminator Attribute Example Router SSR6 has the following CLI configuration Sample BGP Configuration MED AttributeEbgp Aggregation Example Router SSR8 has the following CLI configurationAS-64900 AS-64901Route Reflection Example Router SSR9 has the following CLI configurationAS-64902 Shows a sample configuration that uses route reflectionSmartSwitch Router User Reference Manual 161 162 Route Import and Export Policy Overview Chapter Routing Policy Configuration GuideDefault Preference Values Preference Defined by CLI Command DefaultPreference Import-Source Import PoliciesRoute-Filter Export PoliciesExport-Destination Export-SourceSpecifying a Route Filter Aggregates and Generates Aggregate-Source Aggregate-DestinationAuthentication Methods AuthenticationAuthentication Keys and Key Management Configuring Simple Routing PoliciesRedistributing Directly Attached Networks Redistributing Static RoutesRedistributing RIP into RIP Redistributing RIP into Ospf Redistributing Ospf to RIPRedistributing Aggregate Routes To redistribute aggregate Simple Route Redistribution ExamplesRoutes into Ospf Example 1 Redistribution into RIPExporting a Given Static Route to All RIP Interfaces Exporting All Static Routes to All RIP InterfacesExample 2 Redistribution into Ospf 176 Configuring Advanced Routing Policies 178 Creating an Export Source Creating an Export DestinationCreating a Route Filter Creating an Import SourceCreating an Aggregate Route Create a RIP importSmartSwitch Router User Reference Manual 181 Creating an Aggregate Source Creating an Aggregate DestinationExamples of Import Policies Example 1 Importing from RIPR41 184 Example 2 Importing from Ospf 186 R41 Importing a Selected Subset of OSPF-ASE Routes Example 1 Exporting to RIP Examples of Export PoliciesIp-router policy create rip-export-source ripExpSrc Exporting a Given Static Route to a Specific RIP Interface Exporting Aggregate-Routes into RIP Ip-router policy create aggr-export-source aggrExpSrc Example 2 Exporting to Ospf SmartSwitch Router User Reference Manual 195 196 SmartSwitch Router User Reference Manual 197 198 Chapter Multicast Routing Configuration Guide IP Multicast OverviewIgmp Overview Dvmrp Overview Configuring Igmp on an IP Interface Configuring IgmpConfiguring Igmp Query Interval Configuring Igmp Response Wait TimeConfiguring Dvmrp Configuring Per-Interface Control of Igmp MembershipStarting and Stopping Dvmrp Configuring Dvmrp on an Interface Configuring Dvmrp ParametersConfiguring the Dvmrp Routing Metric Configuring a Dvmrp Tunnel Configuring Dvmrp TTL & ScopeMonitoring Igmp & Dvmrp Show all interfaces running Multicast protocols IgmpShow all multicast routes Page 208 Chapter IP Policy-Based Forwarding Configuration Guide Configuring IP Policies Defining an ACL ProfileAssociating the Profile with an IP Policy Creating Multi-statement IP Policies Setting the IP Policy Action Setting Load Distribution for Next-hop GatewaysChecking the Availability of Next-hop Gateways Applying an IP Policy to an InterfaceRouting Traffic to Different ISPs IP Policy Configuration ExamplesAn IP interface Apply a defined IP policy to All IP interfaces on the SSRUsing an IP policy to route traffic to two different ISPs Using an IP policy to prioritize service to customers Prioritizing Service to CustomersUsing an IP policy to authenticate users through a firewall Authenticating Users through a FirewallSelecting Next Hop Gateway from IP Packet Information Firewall Load BalancingDisplay information about all Monitoring IP PoliciesIP policies Display statistics about aIp-policy show interface interface SmartSwitch Router User Reference Manual 221 222 Chapter Network Address Translation Configuration Guide Setting Inside and Outside Interfaces Configuring NATManaging Dynamic Bindings Setting NAT RulesStatic DynamicSpecify the FTP session timeout Static ConfigurationNAT and FTP Monitoring NATFirst step is to create the interfaces Using Static NATNext, define the interfaces to be NAT inside or outside Then, define the NAT static rulesUsing Dynamic NAT Dynamic ConfigurationDynamic NAT with IP Overload PAT Configuration Dynamic NAT with Outside Interface Redundancy Using Dynamic NAT with IP OverloadUsing Dynamic NAT with Matching Interface Redundancy 232 Chapter Web Hosting Configuration Guide Load Balancing Configuring Load BalancingCreating the Server Group Specifying Load Balancing Policy OptionalAdding Servers to the Load Balancing Group Setting Server StatusAllowing Access to Load Balancing Servers Setting Timeouts for Load Balancing MappingsLoad Balancing and FTP Displaying Load Balancing Information Configuration Examples207.135.89.16 10.1.1.1 Ftp.quick..com 10.1.1.2 Ftp.quick.com Internet Router User Queries207.135.89.16 207.135.89.17 207.135.89.18 Virtual IP Address RangesWeb Caching Configuring Web CachingSpecifying the Clients for the Cache Group Optional Creating the Cache GroupRedirected to cache servers Not redirected to cache serversConfiguration Example Other ConfigurationsBypassing Cache Servers Distributing Frequently-Accessed Sites Across Cache Servers Monitoring Web-CachingProxy Server Redundancy Show cache server information Show caching policy informationChapter IPX Routing Configuration Guide IPX Routing OverviewRIP Routing Information Protocol SAP Service Advertising Protocol Configuring IPX RIP & SAP Creating IPX InterfacesIPX Addresses Configuring IPX Addresses to Ports Configuring IPX Interfaces and ParametersConfiguring IPX Interfaces for a Vlan Specifying IPX Encapsulation MethodConfiguring Static Routes Configuring IPX RoutingEnabling IPX RIP Enabling SAPConfiguring Static SAP Table Entries Controlling Access to IPX NetworksCreating an IPX Access Control List Creating an IPX Type 20 Access Control List Creating an IPX SAP Access Control ListCreating an IPX GNS Access Control List Monitoring an IPX Network Creating an IPX RIP Access Control ListAdds a SAP access list Adds a GNS access list 254 Chapter Access Control List Configuration Guide Defining Selection Criteria in ACL Rules ACL BasicsHow ACL Rules are Evaluated Implicit Deny Rule Allowing External Responses to Established TCP Connections Following ACL illustrates this feature Creating and Modifying ACLsEditing ACLs Offline Maintaining ACLs Using the ACL Editor Using ACLs Applying ACLs to InterfacesThese uses of ACLs are described in the following sections Using ACLs as Profiles Applying ACLs to ServicesFollowing SSR features use ACL profiles SSR Feature ACL Profile UsageUsing Profile ACLs with the IP Policy Facility Using Profile ACLs with the Traffic Rate Limiting Facility Using Profile ACLs with the Port Mirroring Facility Using Profile ACLs with Dynamic NATRedirecting Http Traffic to Cache Servers Using Profile ACLs with the Web Caching FacilityPreventing Web Objects From Being Cached Enabling ACL LoggingMonitoring ACLs 270 Security Overview Chapter Security Configuration GuideConfiguring Radius Configuring SSR Access SecurityConfiguring Tacacs Monitoring RadiusMonitoring Tacacs Monitoring Tacacs Plus Configuring Tacacs PlusLayer-2 Security Filters Configuring PasswordsConfiguring Layer-2 Port-to-Address Lock Filters Configuring Layer-2 Address FiltersConfiguring Layer-2 Secure Port Filters Configuring Layer-2 Static Entry FiltersConfigure a source static Configure a destination staticMonitoring Layer-2 Security Filters Layer-2 Filter Examples Et.1.1 Et.1.2 Et.1.3 HubStatic Entries Example Example 2 Secure Ports Port-to-Address Lock ExamplesLayer-3 Access Control Lists ACLs 282 QoS & Layer-2/Layer-3/Layer-4 Flow Overview Chapter QoS Configuration GuidePrecedence for Layer-3 Flows Layer-2 and Layer-3 & Layer-4 Flow SpecificationConfiguring Layer-2 QoS Traffic Prioritization for Layer-2 FlowsSSR Queuing Policies Traffic Prioritization for Layer-3 & Layer-4 Flows Configuring IP QoS PoliciesSetting an IP QoS Policy Configuring IPX QoS PoliciesSetting an IPX QoS Policy Specifying Precedence for an IP QoS PolicyAllocating Bandwidth for a Weighted-Fair Queuing Policy Configuring SSR Queueing PolicyToS Rewrite Specifying Precedence for an IPX QoS PolicyMBZ Configuring ToS Rewrite for IP PacketsTos-rewrite Limiting Traffic Rate Monitoring QoSShow all IP QoS flows Show all IPX QoS flowsDefine a rate limit profile Example ConfigurationApply a rate limit profile to an InterfaceInterface interface Displaying Rate Limit Information294 Performance Monitoring Overview Chapter Performance Monitoring GuideShow information about the master Show port error statisticsMAC table Show information about a Particular MAC address Show info about multicastsConfiguring the SSR for Port Mirroring Monitoring Broadcast TrafficOnly IP ACLs can be specified for port mirroring 298 Rmon Overview Configuring and Enabling RmonExample of Rmon Configuration Commands Lite Rmon Groups Rmon GroupsProfessional Rmon Groups Standard Rmon GroupsControl Tables Using Rmon Configuring Rmon Groups Num status enabledisable EnabledisableString status enabledisable Size owner string status enabledisableOid type absolutedelta status enabledisable Port port owner string status enabledisableRmon protocol-distribution index index-number Rmon user-history-control index index-numberDisplaying Rmon Information Rmon CLI Filters 01000CCCCCCC Following shows Host table output without a CLI filterTroubleshooting Rmon Using Rmon CLI FiltersCreating Rmon CLI Filters 312 Ssr# rmon show status Rmon Status Allocating Memory to RmonRmon set memory number WAN Overview WANPrimary and Secondary Addresses Configuring WAN InterfacesStatic, Mapped, and Dynamic Peer IP/IPX Addresses Static AddressesFollowing command line displays two examples for PPP Following command line displays an example for a VlanMapped Addresses Dynamic AddressesFollowing command line displays an example for PPP Forcing Bridged EncapsulationPacket Compression Average Packet Size Example ConfigurationsNature of the Data Link IntegrityPacket Encryption WAN Quality of ServiceSource Filtering and ACLs Weighted-Fair QueueingCongestion Management Random Early Discard REDFrame Relay Overview Virtual CircuitsAdaptive Shaping Permanent Virtual Circuits PVCs Configuring Frame Relay Interfaces for the SSRApplying a Service Profile to an Active Frame Relay WAN Port Setting up a Frame Relay Service ProfileMonitoring Frame Relay WAN Ports Frame Relay Port Configuration326 Configuring PPP Interfaces Point-to-Point Protocol PPP OverviewUse of LCP Magic Numbers Defining the Type and Location of a PPP Interface Setting up a PPP Service ProfileApplying a Service Profile to an Active PPP Port Configuring Multilink PPP BundlesCompression on MLP Bundles or Links Monitoring PPP WAN Ports PPP Port ConfigurationSsrconfig# ppp apply service profile2 ports hs.5.1 Simple Configuration File WAN Configuration ExamplesMulti-router WAN configuration Multi-Router WAN ConfigurationFollowing configuration file applies to Router R1 Router R1 Configuration FileRouter R2 Configuration File Following configuration file applies to Router R2Following configuration file applies to Router R3 Router R3 Configuration FileRouter R4 Configuration File Following configuration file applies to Router R4Following configuration file applies to Router R5 Router R5 Configuration FileRouter R6 Configuration File Following configuration file applies to Router R6SmartSwitch Router User Reference Manual 337 338